Soil survey of Crawford County, Ohio /

[Washington] : The Service, 1979

Soil survey of Falls County, Texas /

by Wyrick, Jim C.
[Washington] : The Service, 1978

Soil survey of Blair County, Pennsylvania /

by Merkel, Edward J.
[Washington, D.C.?] : The Service, 1981

Soil survey of Bucks and Philadelphia Counties, Pennsylvania /

by Tompkins, Edward A.
[Washington] : [U.S. Govt. Print. Off.], 1975

Soil survey of Huntingdon County, Pennsylvania /

by Merkel, Edward J.
[Washington] : National Cooperative Soil Survey, 1978

Soil survey of Tioga County, Pennsylvania /

by Rayburn, James Boyd, 1909-
[Washington, D.C.?] : The Service, 1981

Soil survey of Franklin County, Pennsylvania /

by Long, Richard Stokes, 1909-
[Washington] : The Service, 1975

Soil survey. Lancaster County, Pennsylvania /

by Carey, John Breniser, 1922-
Washington] : U.S. Dept. of Agriculture, Soil Conservation Service, 1959

Soil survey of Monroe County, Pennsylvania.

by Lipscomb, Garland H.
[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1981

Soil survey of Allegheny County, Pennsylvania.

[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1981

Soil survey of Venango County, Pennsylvania /

by Churchill, Norman J.
[Washington] : [U.S. Govt. Print. Off.], 1975

Soil survey of Crawford County, Pennsylvania /

[Washington, D.C.] : National Cooperative Soil Survey, 1979

Soil survey of Armstrong County, Pennsylvania /

by Martin, George D.
[Washington] : The Service, 1977

Soil survey, Montgomery County, Pennsylvania. [Report

by Smith, Robert V., 1928-
Washington] U.S. Dept. of Agriculture, Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1967

Soil survey of Lebanon County, Pennsylvania.

by Holzer, Donald B.
[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1981

Soil survey of Centre County, Pennsylvania.

by Braker, William L.
[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1981

Soil survey of Lancaster County, Pennsylvania /

by Custer, Boyd H.
[Washington, D.C.?] : The Service, 1985

Soil survey of Luzerne County, Pennsylvania.

by Bush, R. Dennis
[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1981

Soil survey of Juniata and Mifflin Counties, Pennsylvania.

by Lipscomb, Garland H.
[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1981